GRL

Rectangular egg crate grille for transfer/extract air and wall/ceiling mounting

For extract air and transfer air
91% free area
Manages large air flows
Cleanable
Can be mounted in an FHA or FHB mounting frame or a TRG commissioning box
Standard colour White RAL 9003
- 5 alternative standard colours
- Other colours upon request

Calculate with your requirements

Rectangular egg crate grille. This gives low pressure drop which makes GRL suitable for high air volumes. In order to regulate or measure the air flow, GRL must be used with the commissioning box TRG.

Technical description

Design

Material and surface treatment

The grille is manufactured in extruded aluminium profiled sections and is painted.

Standard colour:
- White semi-gloss, lustre 40, RAL 9003/NCS S 0500-N
Alternative standard colours:
- Silver gloss, lustre 80, RAL 9006
- Grey aluminium gloss, lustre 80, RAL 9007
- White semi-gloss, lustre 40, RAL 9010
- Black semi-gloss, lustre 35, RAL 9005
- Grey semi-gloss, lustre 30, RAL 7037
Non-painted finish and other colours available on request.

AIR FLOW - SOUND PRESSURE ROOM (Lp10A) *)
GRL Size	25 dB(A)		30 dB(A)		35 dB(A)
GRL Size	l/s	m3/h	l/s	m3/h	l/s	m3/h
200-100	25	90	40	144	55	198
300-100	40	144	70	252	100	360
400-100	47	169	80	288	130	468
500-100	70	252	105	378	150	540
300-150	80	288	120	432	160	576
400-150	115	414	150	540	190	684
500-150	100	360	165	594	230	828
400-200	115	414	195	702	270	972
500-200	125	450	265	954	350	1260
600-200	145	522	280	1008	375	1350
600-300	215	774	400	1440	510	1836
The table shows data for extract air, GRL in combination with TRG and a pressure drop of 50 Pa. *) Lp10A = Sound pressure incl. A-filter with 4 dB room attenuation and 10 m² room absorption area.

TRG

Commissioning box for grilles

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Include Accessory documents

Document	Article	Document type	Date
Rectangular egg crate grille for transfer/extract air (pdf 1.65MB)	GRLc	Technical catalogue	10/02/2022
Building product declaration (pdf 80.2kB)	GRLc	Quality	24/05/2018
Installation, commissioning, maintenance (pdf 1.09MB)	GRLc	IOM Manual	29/10/2019
Building product declaration (pdf 103.03kB)	GRLc	Quality	24/05/2018
Nano certificate (pdf 71.51kB)	Air diffusers	Quality	03/10/2023
Product description - Air diffusers & dampers (pdf 249.19kB)	Air diffusers & dampers	IOM Manual	19/10/2023
Overview - Air diffusers (pdf 3.34MB)	Air diffusers	Brochure	12/07/2022
Commissioning guide - Air diffusers, VAV/CAV- & Commissioning dampers (pdf 7.75MB)	Air diffusers, VAV/CAV- & Commissioning dampers	IOM Manual	19/08/2024

Whilst we have made every effort to ensure information on this website is up to date and accurate, the technical specification and availability of products/services listed on this website may vary market to market and are subject to change without notice. Please contact your regional representative or visit your local website for further details.